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ERROR CODE AND TROUBLESHOOTING
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[CD71] Waste transport motor drive locking error
Is the waste toner transport motor rotating? (Perform the output check: 03-415)
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
NO  1. Check if the connector or the relay connector of the waste toner transport
motor is disconnected.
2. Check if there is any damage or abnormality in the gears on the driving
cascade of the waste toner transport motor.
3. Check if the connector CN342 on the LGC board is disconnected.
4. Check if the connector pin is disconnected or the harness is broken.
5. Check if the conductor pattern on the LGC board is short circuited or open
circuited.
6. Replace the waste toner paddle motor.
7. Replace the LGC board.
YES
Is the auger lock detection sensor operating normally? (Perform output check: 03-[FAX] ON/
[2]/[G])
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NO 
To judge it is an error, check if the sensor detects each status of normal display
and highlighted display.
1. Check if the connector or the relay connector of the auger lock detection
sensor is disconnected.
2. Check if the connector CN359 on the LGC board is disconnected.
3. Check if the connector pin is disconnected or the harness is broken.
4. Check if the conductor pattern on the LGC board is short circuited or open
circuited.
5. Replace the auger lock detection sensor.
6. Replace the LGC board.
YES
1. Check if the conductor pattern on the LGC board is short circuited or open circuited.
2. Replace the LGC board.
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